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1 <br /> MW3-4 • t <br /> ND <br /> A -015 SHED B3-4 <br /> O • t <br /> B3-7 <br /> � t <br /> -02 --�. Ole TRAILER MW3-5 • 'A' <br /> ` ND • B3-8 <br /> -032 63_g STEEL <br /> DIESEL `� MW3-2 y B3-14 63-5 ,83-13 RACKS <br /> TANK �* B3-2'�rO 3,000 133-1 j �� <br /> .0 g. ,� ` -015 MW3-1 �� l <br /> i <br /> 4 7501 ' <br /> MW3-3/ -0 17 t <br /> / B3-3� O 4,100)J �� <br /> ��'�•` •q / SHOP BUILDING <br /> -0 51 <br /> j ry <br /> PORT ROAD G <br /> 63-10 <br /> MW3-6 O �� �/- Approximate extent of hydrocarbon <br /> � ,800_ Impacted groundwater <br /> -0 5+ <br /> Explanation <br /> • Geoprobe location (2001 and 2002) 0 n C <br /> B3-5 r C 14 <br /> • Monitoring well (MW3-2) <br /> W3- Total petroleum hydrocarbons as gasoline • LOf <br /> 3,00 83-11(TPHg) In micrograms per liter (ug/L) (3,000) �. <br /> Groundwater elevation in feet above mean <br /> a sea level (ft MSL) (-0 15) APPROXIMATE SCALE IN FEET <br /> 0 20 40 <br /> B3-2 Soil boring (1998) ' <br /> Q <br /> �l <br /> _ _ Groundwater contours with elevation in feet o 6 �2 <br /> N -� above mean sea level from March 21, 2006 PORT MAINTENANCE ( APPROXIMATE SCALE IN METERS <br /> -a BUILDING 1 <br /> MI —1,000- Line of equal TPHg concentration in ug/L I Basemap modified from Dillon and Murphy 9663Port Rev 7121100 <br /> LL and sketch map from Port of Stockton <br /> O t Line of geologic cross section Q <br /> �.- SITE MAP SHOWING GROUNDWATER ELEVATION <br /> Estimated former excavation area AND TPHg CONCENTRATION CONTOURS <br /> of underground storage tanks • UST Site No 3 - Part of Stockton <br /> . 63-12 Stockton, California <br /> ' CD Notes <br /> m ND=not detected <br /> 0 _By KLU I Date 08/01/2006 Project No 6437 000 <br /> 0 "=Water level elevation is anomalously high compared to nearby <br /> _ wells and was not used in otentiometnc surface contouring <br /> f� Figure 2 <br /> p g � Geomatrix <br /> Z <br />